1 // SPDX-License-Identifier: GPL-2.0-only 1 // SPDX-License-Identifier: GPL-2.0-only
2 /// 2 ///
3 /// Use zeroing allocator rather than allocato 3 /// Use zeroing allocator rather than allocator followed by memset with 0
4 /// 4 ///
5 /// This considers some simple cases that are 5 /// This considers some simple cases that are common and easy to validate
6 /// Note in particular that there are no ...s 6 /// Note in particular that there are no ...s in the rule, so all of the
7 /// matched code has to be contiguous 7 /// matched code has to be contiguous
8 /// 8 ///
9 // Confidence: High 9 // Confidence: High
10 // Copyright: (C) 2009-2010 Julia Lawall, Nico 10 // Copyright: (C) 2009-2010 Julia Lawall, Nicolas Palix, DIKU.
11 // Copyright: (C) 2009-2010 Gilles Muller, INR 11 // Copyright: (C) 2009-2010 Gilles Muller, INRIA/LiP6.
12 // Copyright: (C) 2017 Himanshu Jha 12 // Copyright: (C) 2017 Himanshu Jha
13 // URL: https://coccinelle.gitlabpages.inria.f 13 // URL: https://coccinelle.gitlabpages.inria.fr/website
14 // Options: --no-includes --include-headers 14 // Options: --no-includes --include-headers
15 // 15 //
16 // Keywords: kmalloc, kzalloc 16 // Keywords: kmalloc, kzalloc
17 // Version min: < 2.6.12 kmalloc 17 // Version min: < 2.6.12 kmalloc
18 // Version min: 2.6.14 kzalloc 18 // Version min: 2.6.14 kzalloc
19 // 19 //
20 20
21 virtual context 21 virtual context
22 virtual patch 22 virtual patch
23 virtual org 23 virtual org
24 virtual report 24 virtual report
25 25
26 //-------------------------------------------- 26 //----------------------------------------------------------
27 // For context mode 27 // For context mode
28 //-------------------------------------------- 28 //----------------------------------------------------------
29 29
30 @depends on context@ 30 @depends on context@
31 type T, T2; 31 type T, T2;
32 expression x; 32 expression x;
33 expression E1; 33 expression E1;
34 statement S; 34 statement S;
35 @@ 35 @@
36 36
37 * x = (T)\(kmalloc(E1, ...)\|vmalloc(E1)\|dma_ 37 * x = (T)\(kmalloc(E1, ...)\|vmalloc(E1)\|dma_alloc_coherent(...,E1,...)\|
38 kmalloc_node(E1, ...)\|kmem_cache_alloc(...) 38 kmalloc_node(E1, ...)\|kmem_cache_alloc(...)\|kmem_alloc(E1, ...)\|
39 devm_kmalloc(...,E1,...)\|kvmalloc(E1, ...)\ 39 devm_kmalloc(...,E1,...)\|kvmalloc(E1, ...)\|kvmalloc_node(E1,...)\);
40 if ((x==NULL) || ...) S 40 if ((x==NULL) || ...) S
41 * memset((T2)x,0,E1); 41 * memset((T2)x,0,E1);
42 42
43 //-------------------------------------------- 43 //----------------------------------------------------------
44 // For patch mode 44 // For patch mode
45 //-------------------------------------------- 45 //----------------------------------------------------------
46 46
47 @depends on patch@ 47 @depends on patch@
48 type T, T2; 48 type T, T2;
49 expression x; 49 expression x;
50 expression E1,E2,E3,E4; 50 expression E1,E2,E3,E4;
51 statement S; 51 statement S;
52 @@ 52 @@
53 53
54 ( 54 (
55 - x = kmalloc(E1,E2); 55 - x = kmalloc(E1,E2);
56 + x = kzalloc(E1,E2); 56 + x = kzalloc(E1,E2);
57 | 57 |
58 - x = (T *)kmalloc(E1,E2); 58 - x = (T *)kmalloc(E1,E2);
59 + x = kzalloc(E1,E2); 59 + x = kzalloc(E1,E2);
60 | 60 |
61 - x = (T)kmalloc(E1,E2); 61 - x = (T)kmalloc(E1,E2);
62 + x = (T)kzalloc(E1,E2); 62 + x = (T)kzalloc(E1,E2);
63 | 63 |
64 - x = vmalloc(E1); 64 - x = vmalloc(E1);
65 + x = vzalloc(E1); 65 + x = vzalloc(E1);
66 | 66 |
67 - x = (T *)vmalloc(E1); 67 - x = (T *)vmalloc(E1);
68 + x = vzalloc(E1); 68 + x = vzalloc(E1);
69 | 69 |
70 - x = (T)vmalloc(E1); 70 - x = (T)vmalloc(E1);
71 + x = (T)vzalloc(E1); 71 + x = (T)vzalloc(E1);
72 | 72 |
73 - x = kmalloc_node(E1,E2,E3); 73 - x = kmalloc_node(E1,E2,E3);
74 + x = kzalloc_node(E1,E2,E3); 74 + x = kzalloc_node(E1,E2,E3);
75 | 75 |
76 - x = (T *)kmalloc_node(E1,E2,E3); 76 - x = (T *)kmalloc_node(E1,E2,E3);
77 + x = kzalloc_node(E1,E2,E3); 77 + x = kzalloc_node(E1,E2,E3);
78 | 78 |
79 - x = (T)kmalloc_node(E1,E2,E3); 79 - x = (T)kmalloc_node(E1,E2,E3);
80 + x = (T)kzalloc_node(E1,E2,E3); 80 + x = (T)kzalloc_node(E1,E2,E3);
81 | 81 |
82 - x = kmem_cache_alloc(E3,E4); 82 - x = kmem_cache_alloc(E3,E4);
83 + x = kmem_cache_zalloc(E3,E4); 83 + x = kmem_cache_zalloc(E3,E4);
84 | 84 |
85 - x = (T *)kmem_cache_alloc(E3,E4); 85 - x = (T *)kmem_cache_alloc(E3,E4);
86 + x = kmem_cache_zalloc(E3,E4); 86 + x = kmem_cache_zalloc(E3,E4);
87 | 87 |
88 - x = (T)kmem_cache_alloc(E3,E4); 88 - x = (T)kmem_cache_alloc(E3,E4);
89 + x = (T)kmem_cache_zalloc(E3,E4); 89 + x = (T)kmem_cache_zalloc(E3,E4);
90 | 90 |
91 - x = kmem_alloc(E1,E2); 91 - x = kmem_alloc(E1,E2);
92 + x = kmem_zalloc(E1,E2); 92 + x = kmem_zalloc(E1,E2);
93 | 93 |
94 - x = (T *)kmem_alloc(E1,E2); 94 - x = (T *)kmem_alloc(E1,E2);
95 + x = kmem_zalloc(E1,E2); 95 + x = kmem_zalloc(E1,E2);
96 | 96 |
97 - x = (T)kmem_alloc(E1,E2); 97 - x = (T)kmem_alloc(E1,E2);
98 + x = (T)kmem_zalloc(E1,E2); 98 + x = (T)kmem_zalloc(E1,E2);
99 | 99 |
100 - x = devm_kmalloc(E2,E1,E3); 100 - x = devm_kmalloc(E2,E1,E3);
101 + x = devm_kzalloc(E2,E1,E3); 101 + x = devm_kzalloc(E2,E1,E3);
102 | 102 |
103 - x = (T *)devm_kmalloc(E2,E1,E3); 103 - x = (T *)devm_kmalloc(E2,E1,E3);
104 + x = devm_kzalloc(E2,E1,E3); 104 + x = devm_kzalloc(E2,E1,E3);
105 | 105 |
106 - x = (T)devm_kmalloc(E2,E1,E3); 106 - x = (T)devm_kmalloc(E2,E1,E3);
107 + x = (T)devm_kzalloc(E2,E1,E3); 107 + x = (T)devm_kzalloc(E2,E1,E3);
108 | 108 |
109 - x = kvmalloc(E1,E2); 109 - x = kvmalloc(E1,E2);
110 + x = kvzalloc(E1,E2); 110 + x = kvzalloc(E1,E2);
111 | 111 |
112 - x = (T *)kvmalloc(E1,E2); 112 - x = (T *)kvmalloc(E1,E2);
113 + x = kvzalloc(E1,E2); 113 + x = kvzalloc(E1,E2);
114 | 114 |
115 - x = (T)kvmalloc(E1,E2); 115 - x = (T)kvmalloc(E1,E2);
116 + x = (T)kvzalloc(E1,E2); 116 + x = (T)kvzalloc(E1,E2);
117 | 117 |
118 - x = kvmalloc_node(E1,E2,E3); 118 - x = kvmalloc_node(E1,E2,E3);
119 + x = kvzalloc_node(E1,E2,E3); 119 + x = kvzalloc_node(E1,E2,E3);
120 | 120 |
121 - x = (T *)kvmalloc_node(E1,E2,E3); 121 - x = (T *)kvmalloc_node(E1,E2,E3);
122 + x = kvzalloc_node(E1,E2,E3); 122 + x = kvzalloc_node(E1,E2,E3);
123 | 123 |
124 - x = (T)kvmalloc_node(E1,E2,E3); 124 - x = (T)kvmalloc_node(E1,E2,E3);
125 + x = (T)kvzalloc_node(E1,E2,E3); 125 + x = (T)kvzalloc_node(E1,E2,E3);
126 ) 126 )
127 if ((x==NULL) || ...) S 127 if ((x==NULL) || ...) S
128 - memset((T2)x,0,E1); 128 - memset((T2)x,0,E1);
129 129
130 @depends on patch@ 130 @depends on patch@
131 type T, T2; 131 type T, T2;
132 expression x; 132 expression x;
133 expression E1,E2,E3,E4; 133 expression E1,E2,E3,E4;
134 statement S; 134 statement S;
135 @@ 135 @@
136 x = (T)dma_alloc_coherent(E1, E2, E3, E4); 136 x = (T)dma_alloc_coherent(E1, E2, E3, E4);
137 if ((x==NULL) || ...) S 137 if ((x==NULL) || ...) S
138 - memset((T2)x, 0, E2); 138 - memset((T2)x, 0, E2);
139 139
140 //-------------------------------------------- 140 //----------------------------------------------------------
141 // For org mode 141 // For org mode
142 //-------------------------------------------- 142 //----------------------------------------------------------
143 143
144 @r depends on org || report@ 144 @r depends on org || report@
145 type T, T2; 145 type T, T2;
146 expression x; 146 expression x;
147 expression E1,E2; 147 expression E1,E2;
148 statement S; 148 statement S;
149 position p; 149 position p;
150 @@ 150 @@
151 151
152 x = (T)kmalloc@p(E1,E2); 152 x = (T)kmalloc@p(E1,E2);
153 if ((x==NULL) || ...) S 153 if ((x==NULL) || ...) S
154 memset((T2)x,0,E1); 154 memset((T2)x,0,E1);
155 155
156 @script:python depends on org@ 156 @script:python depends on org@
157 p << r.p; 157 p << r.p;
158 x << r.x; 158 x << r.x;
159 @@ 159 @@
160 160
161 msg="%s" % (x) 161 msg="%s" % (x)
162 msg_safe=msg.replace("[","@(").replace("]",")" 162 msg_safe=msg.replace("[","@(").replace("]",")")
163 coccilib.org.print_todo(p[0], msg_safe) 163 coccilib.org.print_todo(p[0], msg_safe)
164 164
165 @script:python depends on report@ 165 @script:python depends on report@
166 p << r.p; 166 p << r.p;
167 x << r.x; 167 x << r.x;
168 @@ 168 @@
169 169
170 msg="WARNING: kzalloc should be used for %s, i 170 msg="WARNING: kzalloc should be used for %s, instead of kmalloc/memset" % (x)
171 coccilib.report.print_report(p[0], msg) 171 coccilib.report.print_report(p[0], msg)
172 172
173 //-------------------------------------------- 173 //-----------------------------------------------------------------
174 @r1 depends on org || report@ 174 @r1 depends on org || report@
175 type T, T2; 175 type T, T2;
176 expression x; 176 expression x;
177 expression E1; 177 expression E1;
178 statement S; 178 statement S;
179 position p; 179 position p;
180 @@ 180 @@
181 181
182 x = (T)vmalloc@p(E1); 182 x = (T)vmalloc@p(E1);
183 if ((x==NULL) || ...) S 183 if ((x==NULL) || ...) S
184 memset((T2)x,0,E1); 184 memset((T2)x,0,E1);
185 185
186 @script:python depends on org@ 186 @script:python depends on org@
187 p << r1.p; 187 p << r1.p;
188 x << r1.x; 188 x << r1.x;
189 @@ 189 @@
190 190
191 msg="%s" % (x) 191 msg="%s" % (x)
192 msg_safe=msg.replace("[","@(").replace("]",")" 192 msg_safe=msg.replace("[","@(").replace("]",")")
193 coccilib.org.print_todo(p[0], msg_safe) 193 coccilib.org.print_todo(p[0], msg_safe)
194 194
195 @script:python depends on report@ 195 @script:python depends on report@
196 p << r1.p; 196 p << r1.p;
197 x << r1.x; 197 x << r1.x;
198 @@ 198 @@
199 199
200 msg="WARNING: vzalloc should be used for %s, i 200 msg="WARNING: vzalloc should be used for %s, instead of vmalloc/memset" % (x)
201 coccilib.report.print_report(p[0], msg) 201 coccilib.report.print_report(p[0], msg)
202 202
203 //-------------------------------------------- 203 //-----------------------------------------------------------------
204 @r2 depends on org || report@ 204 @r2 depends on org || report@
205 type T, T2; 205 type T, T2;
206 expression x; 206 expression x;
207 expression E1,E2,E3,E4; 207 expression E1,E2,E3,E4;
208 statement S; 208 statement S;
209 position p; 209 position p;
210 @@ 210 @@
211 211
212 x = (T)dma_alloc_coherent@p(E1,E2,E3,E4); 212 x = (T)dma_alloc_coherent@p(E1,E2,E3,E4);
213 if ((x==NULL) || ...) S 213 if ((x==NULL) || ...) S
214 memset((T2)x,0,E2); 214 memset((T2)x,0,E2);
215 215
216 @script:python depends on org@ 216 @script:python depends on org@
217 p << r2.p; 217 p << r2.p;
218 x << r2.x; 218 x << r2.x;
219 @@ 219 @@
220 220
221 msg="%s" % (x) 221 msg="%s" % (x)
222 msg_safe=msg.replace("[","@(").replace("]",")" 222 msg_safe=msg.replace("[","@(").replace("]",")")
223 coccilib.org.print_todo(p[0], msg_safe) 223 coccilib.org.print_todo(p[0], msg_safe)
224 224
225 @script:python depends on report@ 225 @script:python depends on report@
226 p << r2.p; 226 p << r2.p;
227 x << r2.x; 227 x << r2.x;
228 @@ 228 @@
229 229
230 msg="WARNING: dma_alloc_coherent used in %s al 230 msg="WARNING: dma_alloc_coherent used in %s already zeroes out memory, so memset is not needed" % (x)
231 coccilib.report.print_report(p[0], msg) 231 coccilib.report.print_report(p[0], msg)
232 232
233 //-------------------------------------------- 233 //-----------------------------------------------------------------
234 @r3 depends on org || report@ 234 @r3 depends on org || report@
235 type T, T2; 235 type T, T2;
236 expression x; 236 expression x;
237 expression E1,E2,E3; 237 expression E1,E2,E3;
238 statement S; 238 statement S;
239 position p; 239 position p;
240 @@ 240 @@
241 241
242 x = (T)kmalloc_node@p(E1,E2,E3); 242 x = (T)kmalloc_node@p(E1,E2,E3);
243 if ((x==NULL) || ...) S 243 if ((x==NULL) || ...) S
244 memset((T2)x,0,E1); 244 memset((T2)x,0,E1);
245 245
246 @script:python depends on org@ 246 @script:python depends on org@
247 p << r3.p; 247 p << r3.p;
248 x << r3.x; 248 x << r3.x;
249 @@ 249 @@
250 250
251 msg="%s" % (x) 251 msg="%s" % (x)
252 msg_safe=msg.replace("[","@(").replace("]",")" 252 msg_safe=msg.replace("[","@(").replace("]",")")
253 coccilib.org.print_todo(p[0], msg_safe) 253 coccilib.org.print_todo(p[0], msg_safe)
254 254
255 @script:python depends on report@ 255 @script:python depends on report@
256 p << r3.p; 256 p << r3.p;
257 x << r3.x; 257 x << r3.x;
258 @@ 258 @@
259 259
260 msg="WARNING: kzalloc_node should be used for 260 msg="WARNING: kzalloc_node should be used for %s, instead of kmalloc_node/memset" % (x)
261 coccilib.report.print_report(p[0], msg) 261 coccilib.report.print_report(p[0], msg)
262 262
263 //-------------------------------------------- 263 //-----------------------------------------------------------------
264 @r4 depends on org || report@ 264 @r4 depends on org || report@
265 type T, T2; 265 type T, T2;
266 expression x; 266 expression x;
267 expression E1,E2,E3; 267 expression E1,E2,E3;
268 statement S; 268 statement S;
269 position p; 269 position p;
270 @@ 270 @@
271 271
272 x = (T)kmem_cache_alloc@p(E2,E3); 272 x = (T)kmem_cache_alloc@p(E2,E3);
273 if ((x==NULL) || ...) S 273 if ((x==NULL) || ...) S
274 memset((T2)x,0,E1); 274 memset((T2)x,0,E1);
275 275
276 @script:python depends on org@ 276 @script:python depends on org@
277 p << r4.p; 277 p << r4.p;
278 x << r4.x; 278 x << r4.x;
279 @@ 279 @@
280 280
281 msg="%s" % (x) 281 msg="%s" % (x)
282 msg_safe=msg.replace("[","@(").replace("]",")" 282 msg_safe=msg.replace("[","@(").replace("]",")")
283 coccilib.org.print_todo(p[0], msg_safe) 283 coccilib.org.print_todo(p[0], msg_safe)
284 284
285 @script:python depends on report@ 285 @script:python depends on report@
286 p << r4.p; 286 p << r4.p;
287 x << r4.x; 287 x << r4.x;
288 @@ 288 @@
289 289
290 msg="WARNING: kmem_cache_zalloc should be used 290 msg="WARNING: kmem_cache_zalloc should be used for %s, instead of kmem_cache_alloc/memset" % (x)
291 coccilib.report.print_report(p[0], msg) 291 coccilib.report.print_report(p[0], msg)
292 292
293 //-------------------------------------------- 293 //-----------------------------------------------------------------
294 @r5 depends on org || report@ 294 @r5 depends on org || report@
295 type T, T2; 295 type T, T2;
296 expression x; 296 expression x;
297 expression E1,E2; 297 expression E1,E2;
298 statement S; 298 statement S;
299 position p; 299 position p;
300 @@ 300 @@
301 301
302 x = (T)kmem_alloc@p(E1,E2); 302 x = (T)kmem_alloc@p(E1,E2);
303 if ((x==NULL) || ...) S 303 if ((x==NULL) || ...) S
304 memset((T2)x,0,E1); 304 memset((T2)x,0,E1);
305 305
306 @script:python depends on org@ 306 @script:python depends on org@
307 p << r5.p; 307 p << r5.p;
308 x << r5.x; 308 x << r5.x;
309 @@ 309 @@
310 310
311 msg="%s" % (x) 311 msg="%s" % (x)
312 msg_safe=msg.replace("[","@(").replace("]",")" 312 msg_safe=msg.replace("[","@(").replace("]",")")
313 coccilib.org.print_todo(p[0], msg_safe) 313 coccilib.org.print_todo(p[0], msg_safe)
314 314
315 @script:python depends on report@ 315 @script:python depends on report@
316 p << r5.p; 316 p << r5.p;
317 x << r5.x; 317 x << r5.x;
318 @@ 318 @@
319 319
320 msg="WARNING: kmem_zalloc should be used for % 320 msg="WARNING: kmem_zalloc should be used for %s, instead of kmem_alloc/memset" % (x)
321 coccilib.report.print_report(p[0], msg) 321 coccilib.report.print_report(p[0], msg)
322 322
323 //-------------------------------------------- 323 //-----------------------------------------------------------------
324 @r6 depends on org || report@ 324 @r6 depends on org || report@
325 type T, T2; 325 type T, T2;
326 expression x; 326 expression x;
327 expression E1,E2,E3; 327 expression E1,E2,E3;
328 statement S; 328 statement S;
329 position p; 329 position p;
330 @@ 330 @@
331 331
332 x = (T)devm_kmalloc@p(E2,E1,E3); 332 x = (T)devm_kmalloc@p(E2,E1,E3);
333 if ((x==NULL) || ...) S 333 if ((x==NULL) || ...) S
334 memset((T2)x,0,E1); 334 memset((T2)x,0,E1);
335 335
336 @script:python depends on org@ 336 @script:python depends on org@
337 p << r6.p; 337 p << r6.p;
338 x << r6.x; 338 x << r6.x;
339 @@ 339 @@
340 340
341 msg="%s" % (x) 341 msg="%s" % (x)
342 msg_safe=msg.replace("[","@(").replace("]",")" 342 msg_safe=msg.replace("[","@(").replace("]",")")
343 coccilib.org.print_todo(p[0], msg_safe) 343 coccilib.org.print_todo(p[0], msg_safe)
344 344
345 @script:python depends on report@ 345 @script:python depends on report@
346 p << r6.p; 346 p << r6.p;
347 x << r6.x; 347 x << r6.x;
348 @@ 348 @@
349 349
350 msg="WARNING: devm_kzalloc should be used for 350 msg="WARNING: devm_kzalloc should be used for %s, instead of devm_kmalloc/memset" % (x)
351 coccilib.report.print_report(p[0], msg) 351 coccilib.report.print_report(p[0], msg)
352 352
353 //-------------------------------------------- 353 //-----------------------------------------------------------------
354 @r7 depends on org || report@ 354 @r7 depends on org || report@
355 type T, T2; 355 type T, T2;
356 expression x; 356 expression x;
357 expression E1,E2; 357 expression E1,E2;
358 statement S; 358 statement S;
359 position p; 359 position p;
360 @@ 360 @@
361 361
362 x = (T)kvmalloc@p(E1,E2); 362 x = (T)kvmalloc@p(E1,E2);
363 if ((x==NULL) || ...) S 363 if ((x==NULL) || ...) S
364 memset((T2)x,0,E1); 364 memset((T2)x,0,E1);
365 365
366 @script:python depends on org@ 366 @script:python depends on org@
367 p << r7.p; 367 p << r7.p;
368 x << r7.x; 368 x << r7.x;
369 @@ 369 @@
370 370
371 msg="%s" % (x) 371 msg="%s" % (x)
372 msg_safe=msg.replace("[","@(").replace("]",")" 372 msg_safe=msg.replace("[","@(").replace("]",")")
373 coccilib.org.print_todo(p[0], msg_safe) 373 coccilib.org.print_todo(p[0], msg_safe)
374 374
375 @script:python depends on report@ 375 @script:python depends on report@
376 p << r7.p; 376 p << r7.p;
377 x << r7.x; 377 x << r7.x;
378 @@ 378 @@
379 379
380 msg="WARNING: kvzalloc should be used for %s, 380 msg="WARNING: kvzalloc should be used for %s, instead of kvmalloc/memset" % (x)
381 coccilib.report.print_report(p[0], msg) 381 coccilib.report.print_report(p[0], msg)
382 382
383 //-------------------------------------------- 383 //-----------------------------------------------------------------
384 @r9 depends on org || report@ 384 @r9 depends on org || report@
385 type T, T2; 385 type T, T2;
386 expression x; 386 expression x;
387 expression E1,E2,E3; 387 expression E1,E2,E3;
388 statement S; 388 statement S;
389 position p; 389 position p;
390 @@ 390 @@
391 391
392 x = (T)kvmalloc_node@p(E1,E2,E3); 392 x = (T)kvmalloc_node@p(E1,E2,E3);
393 if ((x==NULL) || ...) S 393 if ((x==NULL) || ...) S
394 memset((T2)x,0,E1); 394 memset((T2)x,0,E1);
395 395
396 @script:python depends on org@ 396 @script:python depends on org@
397 p << r9.p; 397 p << r9.p;
398 x << r9.x; 398 x << r9.x;
399 @@ 399 @@
400 400
401 msg="%s" % (x) 401 msg="%s" % (x)
402 msg_safe=msg.replace("[","@(").replace("]",")" 402 msg_safe=msg.replace("[","@(").replace("]",")")
403 coccilib.org.print_todo(p[0], msg_safe) 403 coccilib.org.print_todo(p[0], msg_safe)
404 404
405 @script:python depends on report@ 405 @script:python depends on report@
406 p << r9.p; 406 p << r9.p;
407 x << r9.x; 407 x << r9.x;
408 @@ 408 @@
409 409
410 msg="WARNING: kvzalloc_node should be used for 410 msg="WARNING: kvzalloc_node should be used for %s, instead of kvmalloc_node/memset" % (x)
411 coccilib.report.print_report(p[0], msg) 411 coccilib.report.print_report(p[0], msg)
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